(跪求)ASP.NET 中将文件上传到另外一个服务器
求C#代码!站点在A服务器,要把图片传到B服务器某个文件夹.
地址,用户名,密码都有了!权限有了!跪求代码!
[解决办法]
- C# code
if (Ping("192.168.0.144")) //Ping 看通不通{ if (Connect("192.168.0.144", "administrator", "1qaz2wsx???")) //建立连接 { _fileStream = new FileStream(@"\\192.168.0.144\hh\" + _currentFileName, FileMode.OpenOrCreate); }}#region 连接远程机器 public static bool Ping(string remoteHost) { bool Flag = false; Process proc = new Process(); try { proc.StartInfo.FileName = "cmd.exe"; proc.StartInfo.UseShellExecute = false; proc.StartInfo.RedirectStandardInput = true; proc.StartInfo.RedirectStandardOutput = true; proc.StartInfo.RedirectStandardError = true; proc.StartInfo.CreateNoWindow = true; proc.Start(); string dosLine = @"ping -n 1 " + remoteHost; proc.StandardInput.WriteLine(dosLine); proc.StandardInput.WriteLine("exit"); while (proc.HasExited == false) { proc.WaitForExit(500); } string pingResult = proc.StandardOutput.ReadToEnd(); if (pingResult.IndexOf("(0% loss)") != -1) { Flag = true; } proc.StandardOutput.Close(); } catch (Exception ex) { } finally { try { proc.Close(); proc.Dispose(); } catch { } } return Flag; } public static bool Connect(string remoteHost, string userName, string passWord) { if (!Ping(remoteHost)) { return false; } bool Flag = true; Process proc = new Process(); try { proc.StartInfo.FileName = "cmd.exe"; proc.StartInfo.UseShellExecute = false; proc.StartInfo.RedirectStandardInput = true; proc.StartInfo.RedirectStandardOutput = true; proc.StartInfo.RedirectStandardError = true; proc.StartInfo.CreateNoWindow = true; proc.Start(); string dosLine = @"net use \\" + remoteHost + " " + passWord + " " + " /user:" + userName + ">NUL"; proc.StandardInput.WriteLine(dosLine); proc.StandardInput.WriteLine("exit"); while (proc.HasExited == false) { proc.WaitForExit(1000); } string errormsg = proc.StandardError.ReadToEnd(); if (errormsg != "") { Flag = false; } proc.StandardError.Close(); } catch (Exception ex) { Flag = false; } finally { try { proc.Close(); proc.Dispose(); } catch { } } return Flag; } #endregion排版差了点 请谅解。 测试通过
[解决办法]
将文件上传到网络共享服务器的方法
1，在文件服务器上，创建一个本地帐户，比如登录名：upload，密码：upload，注意在创建的时候选择“密码永不过期”，去掉勾选“用户下次登录时须更改密码”的选项；
2，在要共享的文件夹上点右键，选择“属性”-“安全”，增加upload帐户可以写入的权限；
3，在要共享的文件夹上点右键，选择“共享”，共享此文件夹，并在“权限”按钮点击后添加帐户upload可修改；
4，在另外一台 Web 服务器上，创建登录名和密码与上面完全相同的本地帐户。
5，在web.config里，启用模拟：
web.config里添加的代码
<identity impersonate="true" userName="upload" password="upload" />
6，在网站文件夹和Temporary ASP.NET Files文件夹上设置帐户upload读写权限
7，在ASP.NET的上传文件里写：
C# 代码
protected void Button1_Click(object sender, EventArgs e)
{
string fileName = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName);
FileUpload1.SaveAs(@"\\192.168.3.1\free\" + fileName);
}
8，显示上传的文件：
在IIS里创建虚拟目录，指向“另一台计算机上的共享”，“连接为”输入上面创建的帐户名和密码。即可以http://www.mengxianhui.com/upload/hello.jpg进行访问。
注意：在VS里面直接运行可能会报告
Could not load file or assembly 'WebApplication1' or one of its dependencies. 拒绝访问。
这是因为你模拟的帐户没有权限导致的，你可以发布到IIS看效果。
下面是一段使用程序进行模拟的方法，出自 http://2leggedspider.wordpress.com/2007/05/28/upload-files-to-unc-share-using-asp-net/ ：
C# 代码
- C# code
using System.Security.Principal;using System.Runtime.InteropServices;namespace FileUploadUNCShare{ public partial class _Default : System.Web.UI.Page { public const int LOGON32_LOGON_INTERACTIVE = 2; public const int LOGON32_PROVIDER_DEFAULT = 0; WindowsImpersonationContext impersonationContext; [DllImport("advapi32.dll")] public static extern int LogonUserA(String lpszUserName, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern int DuplicateToken(IntPtr hToken, int impersonationLevel, ref IntPtr hNewToken); [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern bool RevertToSelf(); [DllImport("kernel32.dll", CharSet = CharSet.Auto)] public static extern bool CloseHandle(IntPtr handle); private bool ImpersonateUser(String userName, String domain, String password) { WindowsIdentity tempWindowsIdentity; IntPtr token = IntPtr.Zero; IntPtr tokenDuplicate = IntPtr.Zero; if (RevertToSelf()) { if (LogonUserA(userName, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0) { if (DuplicateToken(token, 2, ref tokenDuplicate) != 0) { tempWindowsIdentity = new WindowsIdentity(tokenDuplicate); impersonationContext = tempWindowsIdentity.Impersonate(); if (impersonationContext != null) { CloseHandle(token); CloseHandle(tokenDuplicate); return true; } } } } if (token != IntPtr.Zero) CloseHandle(token); if (tokenDuplicate != IntPtr.Zero) CloseHandle(tokenDuplicate); return false; } private void UndoImpersonation() { impersonationContext.Undo(); } protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { if (ImpersonateUser("upload", "", "upload")) { if ((FileUpload1.PostedFile != null) && (FileUpload1.PostedFile.ContentLength > 0)) { string fileName = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName); string folderPath = @"\\MyUNCShare\MyFolder\"; string locationToSave = folderPath + "\\" + fileName; try { FileUpload1.PostedFile.SaveAs(locationToSave); Response.Write("The file has been uploaded."); } catch (Exception ex) { Response.Write("Error: " + ex.Message); } } else { Response.Write("Please select a file to upload."); } UndoImpersonation(); } else { Response.Write("Failed"); } } }}
[解决办法]
ASP.NET 中将文件上传到另外一个服务器的方法二
前面的文章，我提供了一种”将文件上传到网络共享服务器的方法“，这次，我们采用FTP的方法将文件上传到另外一台服务器上。
首先，在另外一台服务器上设置好FTP服务，并创建好允许上传的用户和密码，然后，在ASP.NET里就可以直接将文件上传到这台 FTP 服务器上了。代码如下：
ASPX 代码
- HTML code
<%@ Page Language="C#" EnableViewState="false"%><%@ Import Namespace="System.Net" %><%@ Import Namespace="System.IO" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> protected void Button1_Click(object sender, EventArgs e) { //要接收文件的 ftp 服务器地址 String serverUri = "ftp://192.168.3.1/"; String fileName = Path.GetFileName(FileUpload1.FileName); serverUri += fileName; FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri); request.Method = WebRequestMethods.Ftp.AppendFile; request.UseBinary = true; request.UsePassive = true; // ftp 服务器上允许上传的用户名和密码 request.Credentials = new NetworkCredential("upload", "upload"); Stream requestStream = request.GetRequestStream(); Byte[] buffer = FileUpload1.FileBytes; requestStream.Write(buffer, 0, buffer.Length); requestStream.Close(); FtpWebResponse response = (FtpWebResponse)request.GetResponse(); Label1.Text = response.StatusDescription; response.Close(); }</script><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>将文件上传到另外一个服务器的方法二</title></head><body> <form id="form1" runat="server"> <asp:FileUpload ID="FileUpload1" runat="server" /> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="上传文件" /> <div><asp:Label ID="Label1" runat="server" Text=""></asp:Label></div> </form></body></html>